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It is unclear if the Space X founder’s forthcoming biography contains more details about the infant, including when or where he was born.
Representatives for both Musk and Grimes did not immediately respond to PEOPLE’s request for comment.
Nathan Laine/Bloomberg via Getty

Musk and Grimeswelcomed son X Æ A-12, whose name waslater changed to X Æ A-Xiiand is nicknamed “X,” on May 4, 2020.
They then welcomed a daughter born via surrogate in December 2021, namedExa Dark Sideræl, who is nicknamed “Y," three months after theypublicly broke upafter three years together.
In a March 2022Vanity Fairinterview revealing Exa Dark’s birth, Grimes admitted that the former couple wanted more babies, telling the outlet, “We’ve always wanted at least three or four.”
But the day the article was released, the “Genesis” singertweeted that the couple had broken up again.
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SpaxeX founder Elon Musk (L) and Canadian musician Grimes (Claire Boucher) attend the 2018 Space X Hyperloop Pod Competition, in Hawthorne, California on July 22, 2018.ROBYN BECK/AFP via Getty

ROBYN BECK/AFP via Getty
Alongside the three kids he shares with Grimes, Musk is also a father to the six children he shares with his ex-wife, Canadian authorJustine Wilson.
Musk had his first son, Nevada Alexander, with Wilson in 2002, but at 10 weeks old he died from sudden infant death syndrome (SIDS).
Wilson then gave birth to triplets named Kai, Saxon, and Damian in 2006, two years after having their twins.
Grimesopened up about co-parentingwith Musk in an interview withWiredlast month,saying that they are in the process of figuring out what their children’s educational journeys will look like.
“I really care about having a very good relationship with my kids. I think I understand how to be a good parent to them. Both enforcing discipline and being their friend,” she said. “Who knows, maybe they’ll resent me and reject family culture, but I feel like they will not.”
source: people.com